package database.service;

import java.util.Iterator;

import po.UserPO;

public interface UserDataService {
	
	public void load();
	public void save();
	
	public Iterator<UserPO> getIterator();
	
	public int insert(UserPO user);
	public void delete(UserPO user);
	public void update(UserPO user);
	public UserPO find(int id);

}
